4. 4mol h2o = ….. s
5. 3mol Na = ……s
6. 4mol h20= ….s
7. 3mol Na = …..s
9. 4gram NaOH =…..mol
10. 3gram h2o= …mol
tolong ya temen temen
besok di koreksi
2. 2mg fe =….. s
9. NaOH
-massa: 4 gr
-mr: 40 (Na= 23, O= 16, H=1)
-mol (n): m/r
4/40 = 0,1 mol
10. H2O
-massa (m): 3 gr
-mr: 18 (H=1, O=16)
-mol (n): m/mr
3/18= 0,16 mol